F-Tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 11/04/2024
Public
Document Table of Contents

3.1.3. Unsupported PMA/FEC Modes

The F-Tile PMA/FEC Diect PHY Itel® FPGA IP does ot suppot the followig PMA/FEC modes:
  • No suppot fo TX simplex ad RX simplex mode fo FHT ad FEC diect mode.
  • Geabox featue is disabled fo PMA Diect mode.
  • No suppot fo mixtues of PMA modulatio modes withi the same PMA . That is, a TX-oly ad RX-oly chael caot be a mixtue of NRZ ad PAM4 modulatio modes.
  • Does ot suppot the eset cotolle fuctio diectly. Rathe, eset pots that you expose by meas of this IP coe oute to the tile-wide soft eset cotolle (SRC).
  • Paamete edito does ot suppot aalog paamete settigs, such as temiatio, couplig, o tasmitte PMA equalize paametes. Rathe, you must cofigue aalog pi settigs, such as temiatio ad couplig, by use of .qsf assigmets. This method allows you to euse the same IP istace fo diffeet applicatios, with vaious pi aalog settigs, i diffeet .qsf files.
  • No suppot fo eablig a ate-matchig soft FIFO betwee the use FPGA coe logic ad the IP fo pacig the data valid sigal iside the IP.